CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income	$ 6,594	$ 5,757
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	194	191
Share based compensation	463	371
Deferred income taxes	(44)	(148)
Bad debt expense	233	168
(Increase) decrease in operating assets and increase (decrease) in liabilities:
Accounts receivable	(584)	(1,326)
Inventories - finished goods	(1,440)	(2,152)
Prepaid income taxes	243
Prepaid expenses and other current assets	1,143	(161)
Accounts payable	2,277	4,827
Income taxes payable	3,655	3,302
Accrued expenses and other current liabilities	372	(18)
Net cash provided by operating activities	13,106	10,811
Cash flows from investing activities:
Net change in investments		(16)
Purchases of property and equipment	(2,604)	(110)
Net cash used in investing activities	(2,604)	(126)
Cash flows from financing activities:
Dividends paid	(3,834)	(3,613)
Net cash used in financing activities	(3,834)	(3,613)
Net increase in cash and cash equivalents	6,668	7,072
Cash and cash equivalents, at beginning of period	37,639	35,613
Cash and cash equivalents, at end of period	44,307	42,685
Supplemental disclosure of cash flow information:
Cash paid for income taxes	55	226
Prepaid property and equipment in current assets	2,573
Dividends payable in accrued expenses	$ 194	$ 245