Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 23,334	$ 18,036
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,108	1,058
Share based compensation	1,500	1,146
Deferred income taxes	189	216
Bad debt expense	49	46
(Increase) decrease in operating assets and increase (decrease) in liabilities:
Accounts receivable	457	(250)
Inventories - finished goods	(5,279)	(2,777)
Prepaid income taxes	170
Prepaid expenses and other current assets	(94)	(87)
Accounts payable	(996)	(4,845)
Income taxes payable		5,349
Accrued expenses and other current liabilities	(36)	411
Net cash provided by operating activities	20,402	18,303
Cash flows from investing activities:
Purchases of property and equipment	(450)	(350)
Net cash used in investing activities	(450)	(350)
Cash flows from financing activities:
Dividends paid	(10,756)	(8,240)
Net cash used in financing activities	(10,756)	(8,240)
Net increase in cash and cash equivalents	9,196	9,713
Cash and cash equivalents, at beginning of period	77,936	58,730
Cash and cash equivalents, at end of period	87,132	68,443
Supplemental disclosure of cash flow information:
Cash paid for income taxes	6,645	3,780
Dividends payable in accrued expenses	$ 207	$ 202