Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.5.0.2
Segment Information (Details)
 3 Months Ended 6 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
segment
Geographic_Region
Sep. 30, 2015
USD ($)
Mar. 31, 2016
USD ($)
Apr. 01, 2015
USD ($)
Sales by geographic area:            
Number of Reportable Segments | segment     4      
Number of Operating Segments | Geographic_Region     4      
Revenues $ 68,812,000 $ 69,934,000 $ 132,208,000 $ 135,157,000    
Depreciation 1,499,000 1,024,000 2,913,000 2,140,000    
Amortization of intangible assets 3,025,000 3,288,000 5,841,000 6,184,000    
Operating income            
Stock compensation expense 915,000 999,000 1,821,000 1,874,000    
Operating income (loss) 5,675,000 11,321,000 9,865,000 19,393,000    
Property, plant and equipment, net 41,978,000   41,978,000   $ 41,617,000  
Assets 454,660,000   454,660,000   468,677,000  
Operating Segments            
Sales by geographic area:            
Revenues     132,208,000 135,157,000    
Intersegment Eliminations            
Sales by geographic area:            
Revenues 14,442,000 14,051,000 26,399,000 26,871,000    
Segment Reconciling Items            
Operating income            
Stock compensation expense (915,000) (999,000) (1,821,000) (1,874,000)    
Public company costs (297,000) (384,000) (668,000) (698,000)    
United States            
Sales by geographic area:            
Depreciation 890,000 764,000 1,751,000 1,438,000    
Amortization of intangible assets 1,536,000 1,666,000 2,850,000 2,924,000    
Operating income            
Operating income (loss) 424,000 7,579,000 463,000 11,801,000    
Property, plant and equipment, net 34,627,000   34,627,000   34,528,000  
Assets 193,165,000   193,165,000   196,400,000  
United States | Operating Segments            
Sales by geographic area:            
Revenues 29,838,000 34,611,000 59,992,000 63,109,000    
United States | Intersegment Eliminations            
Sales by geographic area:            
Revenues 13,096,000 12,759,000 23,735,000 24,314,000    
Canada            
Sales by geographic area:            
Depreciation 499,000 156,000 951,000 498,000    
Amortization of intangible assets 890,000 996,000 1,791,000 2,005,000    
Operating income            
Operating income (loss) 2,711,000 1,205,000 4,444,000 2,535,000    
Property, plant and equipment, net 4,048,000   4,048,000   3,754,000  
Assets 136,524,000   136,524,000   145,301,000  
Canada | Operating Segments            
Sales by geographic area:            
Revenues 13,051,000 12,632,000 23,160,000 25,702,000    
Canada | Intersegment Eliminations            
Sales by geographic area:            
Revenues 436,000 816,000 1,025,000 1,612,000    
Europe            
Sales by geographic area:            
Depreciation 73,000 58,000 142,000 116,000    
Amortization of intangible assets 333,000 361,000 668,000 724,000    
Operating income            
Operating income (loss) 2,913,000 2,775,000 4,564,000 5,160,000    
Property, plant and equipment, net 2,716,000   2,716,000   2,769,000  
Assets 74,841,000   74,841,000   76,754,000  
Europe | Operating Segments            
Sales by geographic area:            
Revenues 18,554,000 15,245,000 32,317,000 31,596,000    
Europe | Intersegment Eliminations            
Sales by geographic area:            
Revenues 405,000 373,000 1,006,000 742,000    
Asia            
Sales by geographic area:            
Depreciation 37,000 46,000 69,000 88,000    
Amortization of intangible assets 266,000 265,000 532,000 531,000    
Operating income            
Operating income (loss) 839,000 1,145,000 2,883,000 2,469,000    
Property, plant and equipment, net 587,000   587,000   566,000  
Assets 50,130,000   50,130,000   $ 50,222,000  
Asia | Operating Segments            
Sales by geographic area:            
Revenues 7,369,000 7,446,000 16,739,000 14,750,000    
Asia | Intersegment Eliminations            
Sales by geographic area:            
Revenues $ 505,000 103,000 $ 633,000 203,000    
Sumac Fabrication Company Limited            
Operating income            
Expected sales and operating income as a percentage of total sales and operating income, less than 10.00%   10.00%      
Sumac Fabrication Company Limited            
Operating income            
Debt Instrument, face amount           $ 5,905,000
Sumac Fabrication Company Limited | Canada            
Operating income            
Salaries, Wages and Officers' Compensation   $ 1,290,000   $ 2,666,000    
Debt Instrument, face amount $ 5,905,000   $ 5,905,000