Property and Equipment - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Property, Plant and Equipment [Line Items]
Cost	$ 3,872	$ 3,895
Accumulated Depreciation	3,216	3,052
Net Book Value	656	843
Automobiles
Property, Plant and Equipment [Line Items]
Cost	488	646
Accumulated Depreciation	415	468
Net Book Value	73	178
Software
Property, Plant and Equipment [Line Items]
Cost	127
Accumulated Depreciation	3
Net Book Value	124
Equipment
Property, Plant and Equipment [Line Items]
Cost	1,535	1,496
Accumulated Depreciation	1,263	1,071
Net Book Value	272	425
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Cost	535	546
Accumulated Depreciation	465	457
Net Book Value	70	89
Leasehold improvements
Property, Plant and Equipment [Line Items]
Cost	1,187	1,207
Accumulated Depreciation	1,070	1,056
Net Book Value	$ 117	$ 151