Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash Flows from Operating Activities:
Net income	$ 698	$ 1,757
Adjustments to reconcile net income to net cash used by operating activities:
Depreciation and amortization	30	52
Changes in assets and liabilities:
Accounts receivable	(2,201)	2,989
Royalties and other receivables	2,914	738
Due from affiliates	500	1
Inventories	(241)	(3,845)
Prepaid purchases	387	(1,002)
Prepaid expenses and other current assets	47	42
Deferred tax assets and liabilities	160	120
Other assets	43	61
Accounts payable and other current liabilities	(36)	671
Asset allowances, reserves and other	425	(357)
Interest and income taxes payable		(570)
Net cash provided by operating activities	2,726	657
Cash Flows from Investing Activities:
Short term investment	17,194	30,080
Restricted cash	(500)	(3)
Additions to property and equipment		(23)
Net cash provided by investing activities	16,694	30,054
Cash Flows from Financing Activities:
Dividend paid	(18,991)
Net decrease in long-term capital lease obligations		(15)
Net cash used by financing activities	(18,991)	(15)
Net increase in cash and cash equivalents	429	30,696
Cash and cash equivalents at beginning of period	26,328	21,412
Cash and cash equivalents at end of period	26,757	52,108
Cash paid during the period for:
Interest		6
Income taxes	$ 55	$ 573