Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Long-term debt
Long-term debt	$ 4,767	$ 5,054
Current maturities	(746)	(1,832)
Long-term debt, less current maturities	4,021	3,222
Revolving credit facility
Long-term debt
Long-term debt	3,719	2,500
Harris seller's note
Long-term debt
Long-term debt	546	1,607
Equipment lease obligations
Long-term debt
Long-term debt	345	0
Customer equipment finance notes payable
Long-term debt
Long-term debt	90	827
Other long-term debt
Long-term debt
Long-term debt	$ 67	$ 120