Income Taxes - Schedule of Significant Components of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Deferred Tax Assets: Net operating loss carryforwards	$ 2,683	$ 5,869
Deferred Tax Assets: Tax credit carryforward	124	152
Deferred Tax Assets: Inventory and receivable allowances		23
Deferred Tax Assets: Accrued expenses deductible when paid		35
Deferred tax assets	2,807	6,079
Deferred Tax Liabilities: Depreciation and amortization		(153)
Deferred tax liabilities		(153)
Net deferred tax assets, before valuation allowances	2,807	5,926
Valuation allowance	(2,807)	(5,926)
Net deferred tax assets