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Quarterly Information (Unaudited)
12 Months Ended
Sep. 30, 2021
Quarterly Financial Information Disclosure [Abstract]  
QUARTERLY INFORMATION (UNAUDITED)
11. QUARTERLY INFORMATION (UNAUDITED)
The following table sets forth selected quarterly financial data for 2021, 2020, and 2019 (shown in thousands except per share data):
2021
1234
Revenue$25,976 $28,773 $31,778 $33,270 
Cost of revenue4,138 3,792 3,410 3,200 
Operating expenses20,301 22,598 22,936 26,145 
Operating income1,537 2,383 5,432 3,925 
Interest expense— 1,319 2,223 1,587 
Other income, net96 372 80 106 
Income tax benefit (provision)534 (417)(304)(637)
Net income$2,167 $1,019 $2,985 $1,807 
Net income per share:
Net income per share—basic$0.05 $0.02 $0.07 $0.04 
Net income per share—diluted$0.05 $0.02 $0.07 $0.04 
Shares used in calculating net income per share—basic42,476 43,138 43,773 44,616 
Shares used in calculating net income per share—diluted43,897 44,554 45,194 46,236 
2020
1234
Revenue$22,067 $23,192 $25,413 $30,638 
Cost of revenue2,933 3,186 3,496 3,577 
Operating expenses18,835 18,941 20,483 20,991 
Operating income299 1,065 1,434 6,070 
Other income, net303 32 145 61 
Income tax provision(41)(188)(231)(1,135)
Net income$561 $909 $1,348 $4,996 
Net income per share:
Net income per share—basic$0.01 $0.02 $0.03 $0.12 
Net income per share—diluted$0.01 $0.02 $0.03 $0.12 
Shares used in calculating net income per share—basic
40,615 41,022 41,483 41,770 
Shares used in calculating net income per share—diluted
41,828 42,028 42,428 43,101 
2019
1234
Revenue$17,683 $19,983 $21,906 $25,018 
Cost of revenue2,878 2,991 3,168 3,229 
Operating expenses19,365 18,642 21,647 17,260 
Operating income (loss)(4,560)(1,650)(2,909)4,529 
Other income, net14 140 98 350 
Income tax benefit (provision)1,355 794 2,712 (1,597)
Net income (loss)$(3,191)$(716)$(99)$3,282 
Net income (loss) per share:
Net income (loss) per share—basic$(0.08)$(0.02)$— $0.08 
Net loss per share—diluted$(0.08)$(0.02)$— $0.08 
Shares used in calculating net income (loss) per share—basic
38,247 38,926 39,936 40,252 
Shares used in calculating net income (loss) per share—diluted
38,247 38,926 39,936 41,635