CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 1,449	$ 2,002
Restricted cash	0	400
Available-for-sale securities	54,158	59,502
Prepaid program costs and expenses	772	1,335
Accounts receivable	179	666
Total current assets	56,558	63,905
Property and equipment, net	0	2,429
Goodwill	0	70
Other long-term assets	0	81
Total assets	56,558	66,485
Current liabilities:
Accounts payable and accrued expenses	2,088	2,794
Participants' deposits	1,913	23,161
Foreign currency exchange contracts	0	1,345
Deferred tax liabilities	0	18
Other liabilities	1	1
Total current liabilities	4,002	27,319
Deferred tax liabilities	0	6
Total liabilities	$ 4,002	$ 27,325
Commitments and Contingencies (Note 11)
STOCKHOLDERS' EQUITY
Preferred stock, $.01 par value; 2,000,000 shares authorized; none issued and outstanding	$ 0	$ 0
Common stock, $.01 par value; 50,000,000 shares authorized; 17,575,337 and 17,286,449 shares issued and outstanding, respectively	175	173
Additional paid-in capital	2,818	1,630
Retained earnings	49,665	38,334
Accumulated other comprehensive loss	(102)	(977)
Stockholders' equity	52,556	39,160
Total liabilities and stockholders' equity	$ 56,558	$ 66,485

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.